Autometers alliance ltd, an iso 9001 certified company is engaged in designing, manufacturing, supplying, installing & servicing various measuring, switchgear and power conversion equipments for railways and uninterruptible power supply [ups] for industrial applications. Autometers alliance ltd was selected by the indian railways [clw] for the manufacture of 300 kva gto-based auxiliary converter. This static converter is in accordance with iec 601287-1, iec 60571 and iec 60310. The following are its salient features:
1. a modular concept, in which, each module serves a specific power and control function
2. designed to give 200 kva with vvvf and 100 kva with vvcf
3. designed to sustain wide input voltage and frequency variations
4. thyristor controlled rectifiers
5. independent phase modules of inverter combined to build a 3-phase inverter
6. protected against over voltages in the dc link and at the input
7. microprocessor based electronic rack for controlling and monitoring the function of the power modules
8. communication between converter and the vehicle control unit through mikas
9. cooling within the cubicle through internal fans
Converts single phase input voltage with typical railway characteristics to stabilise 3-phase voltages for the safe and reliable operation of electrical equipment onboard railway vehicles.
